QY-IMX6S Linux Function And Test Manual
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Page 43 of 72
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Test Principle:
USB Host supports hot plug, system will recognize and prints USB
Flash Disk after inserting the USB Flash Disk.
After recognition, it generates device node [/dev/sda] and partition
node [/dev/sda1] in [/dev] directory. (If there are several partitions, then
the number will be increased.)
Finally, the system will mount all of the partitions to the
[/media/]directory, we can judge whether the interface is normal by
writing and reading the relative files in this directory.
Test Process & Test Result:
Test on the USB Flash Dish with one partition
Insert USB Flash Disk to J11, debug UART prints the following
information:
As shown, the contents in USB Flash Disk has been recognized,
the device node [sda], child node [sda4].
